Analysis and verification of electrodynamic force,thermal stress and current sharing for CRAFT converter structure design  

作　　者：王重马 石朝毅 张秀青 卢文武 张胜 高先和 许涛 邵兴星 黄连生 Zhongma WANG;Chaoyi SHI;Xiuqing ZHANG;Wenwu LU;Sheng ZHANG;Xianhe GAO;Tao XU;Xingxing SHAO;Liansheng HUANG(Hefei University,Hefei 230000,People’s Republic of China;Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,People’s Republic of China)

机构地区：[1]Hefei University,Hefei 230000,People’s Republic of China [2]Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,People’s Republic of China

出　　处：《Plasma Science and Technology》2024年第8期104-111,共8页等离子体科学和技术（英文版）

基　　金：supported by the Talent Research Fund of Hefei University(No.21-22RC09);National Natural Science Foundation of China(No.U22A20225)。

摘　　要：In the design realm of fusion power supplies,structural components play a pivotal role in ensuring the safety of fusion devices.To verify the reliability of the converter structure design at the Comprehensive Research Facility for Fusion Technology(CRAFT),meticulous analysis of the converter's dynamic impact is carefully performed based on the worst fault current(400k A),firstly.Subsequently,the thermal stress analysis based on the maximum allowable steadystate temperature is finished,and the equivalent thermal stress,thermal deformation,maximum shear stress of a single bridge arm and the whole converter are studied.Furthermore,a simple research method involving the current-sharing characteristics of a bridge arm with multithyristor parallel connection is proposed using a combination of Simplorer with Q3D in ANSYS.The results show that the current-sharing characteristics are excellent.Finally,the structural design has been meticulously tailored to meet the established requirements.

关 键 词：electrodynamic analysis thermal stress current-sharing characteristics CRAFT 

分 类 号：TL61[核科学技术—核技术及应用]